Flushing-valve.



D. W. MGNEIL.

FLUSHING VALVE.

APPLIOATION FILED DB0.9,1907.

Patented Feb. 16, 1909.

3 noauto@ UNITED STATES PATENT OFFICE.

DANIEL W. MCNEIL, OF CINCINNATI, OHIO, ASSIGNOR TO THE JOHN DOUGLASCOMPANY, OF

CINCINNATI, OHIO, A CORPORATION OF OHIO.

FLUSHING-VALVE To all whom 'it may concern:

Be it known that I, DANIEL W. MCNEIL, a citizen of the United States ofAmerica, and /re'sident of Cincinnati, county of Hamilton, State ofOhio, have invented certain new and useful Improvements inFlushing-Valves, ol y which the following is a specification.

My invention relates to that kind ol' flushing valve which is providedwith a lever the moving of which admits wat'er from thc mains to aclosed tank so that the water flowing into said tank compresses the airtherein, the water continuing to flow into the tank until the pressuretherein is equal to the pressure in the mains and in which the flush- 1nf is done by the water from the tank, thus fe when the pressure upon thelever is released.n

The olfect of my invention is to provide a valve of this character whichhas as few parts as practicable, so that it may be made at less cost andin a more, compact forni and is less liable to get out of order thanthose heretofore used, and which is provided with a ready means forregulating the rate of discharge of the flushing water` This object isattained by the means described in the specification and illustrated inthe accompanyin'hr drawings, in which,

Figure 1 is a side elevation ol' a closet bowl, provlded with a. lushingvalve embodyingr my invention, the tank being,r omitted. Fig. 2 is acentral sectional view of the valve taken upon line of Fig. 4, showingthe valve in the position itoccupies after the water in the tank hasreached the. pressure ol' that in the mains. Fig. 3 is a view similar toFig. 2 but showing the position to which the valve is carried h y thewater in the llushingr operation. Fig. 4 is a view takV/ upon line z-zol Fig. 2. Fig'. is a detai view of the rotatory push rod to which tluylever is connected, and the valve for controlling' water from the mains.Fig. 6 isfa sectional detail view of a modified l'orln ol' the mainvalve. Fig. 7 is a similar view ol' the regulatingr screw.

, 'lhc valvehousing consists of a rylindrieal shell, A, having near itstop an exlerorly screw-threaderl` annular extension, a, which is coupledby a mit to a pipe, B, which leads to the water tank-mot shown. Belowthe valve seat, u", the housing has a port, rz, surrounded by a lateralannular extension, a, 5.-', which joins the discharge spout into lhe AloSpecification of Letters Patent.

Application filed December 9, 1907.

.f", within the llange, r

Patented Feb. 16, 1909.

Serial No. 405,746.

bowl, C, which is of ordinary constluction. Upon the side of thecylindrical housing, A,

is formed a smaller horizontal cylindrical housing, e, for the valveswhich control the entrance of the water from the mains into the housing,A. Housing, e, has upon its interior two central annular flanges, e',e2, between which is a port, e, which leads into the lower chamber ofhousing, A.. One end of the housing, e, is connected by a pi e, e, tothe mains. rihe entrance of water rom the pipe, e4, to the port, el, iscontrolled by a valve, E, which 1s normally held to its seat,

e, hy a coiled spring, er. lfithin the end of the housing, e, oppositeto the pipe, c, is a bonnet,f, within which is seated the pushrod, F,upon. whose end is secured a lcver,f, which is connected byarins,{f2,f", tothe seat,

c, w hose forward end is heh normally raised from the howl by means oi aspring, not shown. The inner end of the push rod has a rei-ess intowhich the valve stein, e, of the valve, E, Jrojects, so that an inwardmovement of the rod, F, will raise the valve, E, from its seat. Themeans whereby a rotan tion of the rod, F, will cause it to move in ward,is as follows: Bonnet, f, has beveled notcl1esf,{,{5, upon its innerend, and rod,f, has lieve ed ugs,f,fl, which project into the notches,f,f5, so that a rotation of the rod, F, will 'cause the lugs,f,f7, to rideinward upon bevcls, f, and carry the rod inward and push. the valve, E,oill its seat. Rod, F, has an enlarged portioinf", which in the forwardposition ol" the rod projects into the perforation in the llauge, e',and closes the same, but whirl: has its end, f, tapered so that when therod is in its normal position there is a water passage hetueeu theeluhf", and the ihiizgr, r. fl'herel'ore when 95 pressure is broughtupon the lever, j", the rod, F, is pushed inward rarrymg the valve,

E, oll' its seat, e2, and carrying the portion,`

so that water `from the` mains will then iroug'h the pipe, r1(1( r, apdport, c, into the bottom oiI the housing, A, and that when the pressureu )on the le\e|,f, is released, the rod, F, wil he retracted, the valve,li, he carried to its seat by the spring', e, and communication estab-105 lished hetnet-1 the lower chamber of the housing and the outlet, a,through the port,

e, the perforation within the ilange. e', and the port, a4, whichconnects the interior of housing, c, with the discharge port, a, as

shown in Fig. 4. The size of the opening, ai, is regulated by means of asplit screw, a5, the screw having a diagonal slit, a, in it, as

shown in Fig. 7, by which the rate of floi'r't through the port may bcregulated.

Against the valve scat, a', the main valve, G, is seated. Valve, (l, hasa hollow valvesteln, g, formed integral with which is a piston, g',against which a cup leather, g2, is held by means of a nut, y. Withinthe valve stein, g, is a secondary hollow valvestern, h, which carriesat its u per end a valve, H, beneath which the valrve stem, z, hasperforations, h', h. They movement of the valve-stem, h, within thevalve-stem, g, is limited by means of a transverse pin, ha.

The o eration is as follows: vWhen Water enters t e valve housing; port,e, the pressure under g, raises the valve, G, to its seat, a', andraises the valve, H, from its seat until the pin, h3, contacts the lowerend of the valvestem, g, so that the perforations, 7L', h2, stand abovethe stem, g, and water from the mains then passes into the pipe, B tothe tank until the pressure therein has reached that of the pressure inthe mains. The valve, H, will then by its own weight all to its seat,thus cuttinl oil' connnunication between thetank, B, an the lowerchamber within the housing, A, below the cup leather, g2. When thepressure upon the lever, f is released by the raising ot"t`he-seat, c,the valve, E, resumes its seat against the flange, e2 and the portion,j, is withdrawn from the perforation within the flange, e and the waterbelow the cup leather, q2, flows out through the perforation, e3, andthe port, a, and the split nut, af,into the discharge outlet, a3, thepressure below the cup leather, g2, thus being relieved, the pressure inthe tank will carry the valve, G, and the valve, H, downward, openingcommunication between pipe, B, and the discharge outlet, a, into thebowl. The rate at which the valve, G, will move away from its valveseat, a', will be in direct proportion to the rate at which thedischarge from below the cup leather, g, takes place, which, asaforedescribed, depends upon the position of the split screw, a5, in theport, a. The size of the opening between the valve, G, and its scat, a',is thus smallest when the pressure in thc pipe, B, from the tank isgreatest and as the pressure in the pipe, B, from the tank becomes less,the distance of the valve, G, from its seat, a, becomes greater, andthus the rate of the discharge of the flushing water is made uniform, oras nearl so as it may be desired to have it. To enalile a per son to relate the position of the screw, as, the annu ar extension, as, isrovided with the cup leather,

Aan opening and a screw, ai, 1n a inement with the screw, a, as shown inFig4.

In the modification shown in Fig. 6, the valve, H', which corresponds tovalve, H,

A, through the shown in Fig. 2, is made to project up int.V the annularextension, a, in order to retard the initial discharge of the water.

What I claim is:

1. A flush valve having a housing with an inlet and a discharge o eninga ipe connecting the housing wit a c ose tank in com-bination with avalve seat in the housing between the pipe and the dischar e opening, amain valve to contact the va ve seat, a valve stem projecting from themain valve into the housing, a piston upon the valve stem and contactinthe housing between the inlet opening an the discharge opening,

the main valve having connecting the inlet leading to the tank, asecondary valve seate within the opening inthe main valve and adapted tobe opened by the water from the mains to admit water to the tank, andclosing the opening automatically when the pressure in the tank becomesequal to that in the mains and a valve at the inlet opening forcontrolling the flow of water 4from the mains.

2. In a flush valve having va valve housing with an inlet and adischarge opening, a pi e connecting the housing witha closed tan incombination with a valve seat in the housing between the pipe and thedischarge opening, a main valve to contact the valve seat, the mainvalve having a channel extendingthrough it and its valve `stem forconnecting the inlet and the pi e leading to the tank, a piston upon theval)ve stem and contactingI the housing between the inlet opening andthe dischar e opening, a. secondary'valve contacting t e end of the mainvalve to close its opening and having a tubular stem extending into themain valve stem and having discharge openings adjacent the secondaryvalve for admitting water to the pi )e and a valve in the inlet openingfor contrdlling the flow of water from the mains.y

3. A flush valve having a housing with an inlet and discharge opening,`api e connecting the housing with a closed tan in combi- Vnation with avalve seat in the housing between the pipe and discharge opening, a mainvalve to contact the valve seat, a valve stem projecting from the mainvalve into the housing, a piston upon the valve stem' and contacting thehousing between the .inlet opening and the discharge opening, thehousing having a `channel connecting the inlet opening and the dischargeopening, the main valve having an opening through 1t connect-- ing theinlet opening and the pipe leadin to the tank, a secondary valve seatedwit iin the opening in the main valve and adapted to be opened by thewater from the mains to admit water to the tank, a third valve and ameans whereby the moving of the third valw in one direction puts themlet opening into an opening through 1t communication with the mains andcloses openlng and the pipe the channel between the inlet opening andthe discharge and the movin of the third valve in the other direction coses the communication between the inlet opening and 5 the mains andopens the channel between the inlet o ning and the discharge.

4. A iin` valve having en inlet opening at one end, an opening at theopposite end to be connected to a closed tank, and a discharge lebetween the inlet opening and the tank opening a valve seat between thetank opening and the discharge opening, a main valve seated against thevalve seat and having e. piston to contacttlie housing between the 15discharge opening and the inlet opening, the main valve having a channelthro h it, a secondary valve within the channe to be opened by apressm'e from the mains, a water way connecti the chamber between the 2npiston and the inlet with t-he discharge o nmg, a means for regulatingthe size the water-way, a third valve a means whereby the movementof thethird valve in one direction puts said chamber into communication 25with the mains and cuts olf its communication withthe discharge, and themovement of the third valve in the opposite direction closes thecommunication said chamber with the mains and opens its communication sewit-litho 5. A flushing valve to be interposed between the mains and aclosed tank and having a main valve with a channel therethrou h and a.secondary valve seated within t ie channel in the main valve and adaptedto be raised by the water from the mains and to resume its seat when thepressure in the tank equals that in the mains.

6. A vertical valve lxousin a valve there in havi two disks which wienthe valve is 4o seated divide the housing into three chambers, the upperone communicating with a closed tank, the central one with a. bowl, andthe lower one receivinv water from the mains, and when the valve islowered puts 45 the upper chamber into communication with the bowl, achannel through the valve putting the upper and lower chambers intocommunication, a secondary valve in the channel in the main valve to beopened by pres- 5o sure from the mains, means of communica tion betweenthe lower chamber and the bowl: and a third valve for regulatingcommnmcation between the lower chamber and the mains and regulat' thecommunication 55 between the lower cham r andthe bowl.

DANIEL W. McNE Witnesses: l

WAL-ren F. MURRAY, Acxns Mcomcx.

